EP4298695A1 - Dispositif de connexion électrique - Google Patents

Dispositif de connexion électrique

Info

Publication number
EP4298695A1
EP4298695A1 EP22710500.4A EP22710500A EP4298695A1 EP 4298695 A1 EP4298695 A1 EP 4298695A1 EP 22710500 A EP22710500 A EP 22710500A EP 4298695 A1 EP4298695 A1 EP 4298695A1
Authority
EP
European Patent Office
Prior art keywords
contact body
male contact
lever
male
connecting device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22710500.4A
Other languages
German (de)
English (en)
Inventor
Michael Schambach
Sven Hartenbach
Florian Hupfeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaltbau GmbH
Original Assignee
Schaltbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaltbau GmbH filed Critical Schaltbau GmbH
Publication of EP4298695A1 publication Critical patent/EP4298695A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5016—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/489—Clamped connections, spring connections utilising a spring, clip, or other resilient member spring force increased by screw, cam, wedge, or other fastening means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/28—End pieces consisting of a ferrule or sleeve
    • H01R11/281—End pieces consisting of a ferrule or sleeve for connections to batteries
    • H01R11/282—End pieces consisting of a ferrule or sleeve for connections to batteries comprising means for facilitating engagement or disengagement, e.g. quick release terminal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/20—Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
    • H01R25/161—Details
    • H01R25/162—Electrical connections between or with rails or bus-bars

Definitions

  • the present invention relates to an electrical connection device according to the preamble of independent claim 1.
  • the electrical connection device is used in particular to connect busbars to one another.
  • a generic electrical connection device has a female contact and a male contact body, which are designed such that the male contact body can be inserted into the female contact along an insertion direction and the male contact body has a cavity that extends through the male contact body, the cavity passing through an inner side of the male contact body is delimited, the device also having a spreading element inserted into the cavity, which has cross-sections that taper along its longitudinal axis in a locking direction, the spreading element moving from a released position to a tightened position along the locking direction is transferrable that the male contact body is spread open and thereby a con tact pressure between the female contact and the male contact body is generated.
  • the cavity extends through the entire male contact body and thus forms two openings on the male contact body.
  • An electrical connecting device is known from EP 2 141 719 A1.
  • This electrical connection device is a circuit breaker that can be moved between two positions.
  • the contact pressure between the male contact body and the female contact is maintained here by a frictional connection between the male contact body, the female contact and the expansion element. With such an arrangement, the contact pressure and thus the contact is not ensured under certain disruptive influences such as vibrations of the connecting device.
  • the object is achieved by the features of independent claim 1. Accordingly, in an electrical connection device according to the preamble of independent claim 1, the object is achieved according to the invention if the inside of the male contact body has a first latching element and an outside of the spreading element has a second latching element, wherein the first latching element latches with the second latching element when the spreader element reaches the tightened position, so that the spreader element is secured in the tightened position.
  • the solution according to the invention offers the advantage that the fuse can be manufactured easily and inexpensively.
  • the contact pressure generated can be defined constructively by the inventive electrical connection device, since the tightened position of the spreading element and thus the contact pressure are predetermined by the latching of the first latching element and the second latching element.
  • the cavity tapers in the locking direction in such a way that the male contact body spreads out in such a way that there is a planar contact between the inside of the male contact body and a lateral surface of the spreader element when the spreader element is in the attracted position.
  • the planar contact results in an improved frictional connection and the contact body is held in the tightened position by this frictional connection in addition to the latching of the first latching element and the second latching element.
  • first latching element and/or the second latching element have a rounding, so that the latching between the first latching element and the second latching element can be released non-destructively by exerting force on the expanding element in the opposite direction to the locking direction is possible.
  • the connection can be reused and components that are attached to the respective side of the connection can be exchanged.
  • the male contact body has slots at its axial end opposite to the locking direction, so that the male contact body can be spread open by the spreading element in this area with less force. This reduces the force required to generate the required spreading of the male contact body to create the desired contact pressure.
  • the deformation of the male contact body can be largely or completely within the elastic range, which increases reusability.
  • the female contact and the male contact body are designed in such a way that they are aligned coaxially with one another when the male contact body is inserted into the female contact.
  • the spreading element is preferably also designed in such a way that it is aligned coaxially with the male contact body.
  • a cross-sectional area of the cavity and a cross-sectional area of the spreading element each have a round shape, preferably a circular area.
  • the contact surface between the expansion element and the inside of the male contact body, which causes the frictional connection between these elements, is maximized.
  • a contact surface has contact-forming elevations on an outside of the male contact body.
  • the contact-forming elevations are formed as webs, which preferably run along the outside of the male contact body in the locking direction.
  • the contact-forming elevations result in a large number of contact points between the male contact body and the female contact. This lowers the contact resistance.
  • the elevations increase the frictional resistance between the male contact body and the female contact.
  • the spreading element has the second latching element as a circumferential projection on its outside and the male contact body has the second latching element as a circumferential groove on its inside, the projection and the groove being formed in a form-fitting manner with respect to one another are.
  • the circumferential projection and the circumferential groove are designed in such a way that the expanding element can be moved into and out of the tightened position non-destructively, in which a surface of the projection moves away from a surface of the groove under the action of a force acting in or against the locking direction the spreader slides.
  • the outside of the male contact body has a third latching element and an inside of the female contact has a fourth latching element, the third latching element latching with the fourth latching element when the spreading element presses the tightened bottom position is achieved so that the contact between the male contact body and the female contact is secured.
  • the device has a movement mechanism which causes the movement of the spreading element, the movement mechanism being lockable when the spreading element is in the tightened position. This enables additional securing of the spreader element in the tightened position and thus securing of the contact pressure.
  • the movement mechanism has a lever, which is mounted so that it can rotate about a pivot axis relative to the male contact body, with a first leg of the lever attaching to a region of the spreading element that extends out of the cavity of the male contact body in the locking direction in such a way that a Movement of the lever between an open position and a closed position causes movement of the spreader element between the released position and the tightened position.
  • This configuration of the movement mechanism can be implemented in a structurally cost-effective manner.
  • a releasable retainer of the lever locks the lever in the closed position once the lever reaches the closed position.
  • a releasable securing of the lever can be implemented in various structural ways in a safe, cost-effective and simple manner.
  • the securing of the lever is designed as a snap-action element in the form of a hook, the hook during a transfer of the lever from the open position in the closed position, hooks to a second leg of the lever opposite the first leg of the lever to the pivot axis. This ensures that the lever is secured in the closed position.
  • the device has a housing.
  • the housing advantageously surrounds the male contact body at least in regions.
  • the case can fulfill various advantageous tasks. So it can act as a protection against dirt that should be kept away from the electrical connection. In addition, it can serve as a suspension for components of the connecting device and assume an electrically insulating effect.
  • the housing forms an assembly with the male contact body.
  • the housing can be pre-assembled with the male contact body.
  • the housing is designed in such a way that the female contact can be inserted between the male contact body and a housing part.
  • the housing part is preferably designed as a sleeve and more preferably aligned coaxially with the male contact body.
  • the outside of the female contact touches the inside of the housing part when the male contact body is inserted into the female contact. This simplifies the alignment of the male contact body to the female contact and the contact surface between the male contact body and the female contact is protected even better against contamination.
  • the housing part is preferably designed in such a way that the housing part stabilizes the female contact from the outside while the male contact body is being spread open. This counteracts plastic deformation of the female contact, which among other things increases the reusability of this component since the housing part supports the female contact.
  • the lever is mounted on the housing.
  • the snap element is formed as part of the housing. This enables an even more compact structure.
  • an additional housing forms a construction group with the female contact and is designed such that the housing of the assembly with the male contact body can be inserted between the additional housing and the female contact.
  • the additional housing is designed as a sleeve, which is preferentially aligned coaxially with the female contact.
  • the outside of the housing touches the inside of the additional housing when the male contact body in the female contact is introduced. This further simplifies the alignment between male contact body and female contact and results in effective insulation and very effective protection against contamination.
  • the contact surfaces of the male contact body and the female contact are largely secured against manual access, which increases safety when using the connecting device.
  • the female contact is seated on a first surface of a connection element, wherein an axis of the female contact includes an angle between 70° and 90° with the first surface and the connection element has a portion which is arranged on the first surface , wherein an angle of intersection between a normal vector of the section and a normal vector of the first surface is between 70° and 90°, the section being surrounded with a layer of an insulating material.
  • the additional housing is formed in one piece from the same insulating material as the layer around the portion of the connecting element. More preferably, the first face of the connector is also surrounded by the insulating material and the additional housing is integrally formed with the insulating material around the first face of the connector. More preferably, the additional housing is integrally formed with the insulating material around the first surface and around the portion of the connector. This enables a particularly simple manufacture of the additional housing and reduces the number of production steps required.
  • Figure 1 is an oblique view of an embodiment of the invention
  • Figure 2 shows a section through the embodiment without the female contact
  • FIG. 4 shows an exploded view of an assembly of the exemplary embodiment made up of male contact body, lever, expanding element and a first and second housing part,
  • FIG. 5a, b, c Oblique views of the embodiment with an additional housing around female contact in various process steps for closing the connection between female contact and male contact body
  • FIG. 6 shows a section through the exemplary embodiment with an additional housing.
  • FIG. 1 shows an oblique view of the exemplary embodiment of the electrical connecting device 1 obliquely from above.
  • FIG. 2 shows a section through the electrical connecting device 1 without the female contact 3.
  • FIG. 3 also shows a section through the electrical connecting device 1, the housing 5 and the lever 6 not being shown here.
  • FIG. 4 shows an exploded view of the assembly consisting of the male contact body 2, the lever 6, the expanding element 4 and the housing 5, which consists of a first housing part 11 and a second housing part 12.
  • the embodiment of the electrical connecting device 1 comprises a male contact body 2 and a female contact 3, between which an electrical contact with a specific contact pressure is to be created by the electrical connecting device.
  • the male contact body 2 is guided into the female contact 3 in an insertion direction 15 .
  • the female contact 3 is designed as a sleeve.
  • Through the male contact body 2 extends a conical cavity that penetrates the male contact body 2 com plett.
  • the cavity can also be embodied zy-cylindrical, cuboid or pyramid-shaped, among other things.
  • Within this cavity be there is also a conical spreading element 4, which can be moved from a loose position to a tightened position by moving in a locking direction 14.
  • the spreading element 4 can also deviate from the conical shape in other exemplary embodiments. However, the spreading element 4 must have tapered cross sections in the locking direction 14 .
  • the movement of the spreader element 4 in the locking direction 14 from a loose position to a tightened position causes a region to be spread open of the male contact body 2, so that a contact pressure between the male contact body 2 and the female contact 3 arises.
  • the male contact body 2 has webs 19 on its outside, which lower the contact resistance between the male contact body 2 and the female contact 3 .
  • the spreader element 4 is shown in the tightened position and the male contact body 2 is shown inserted into the female contact 3 respectively.
  • the arrows which represent possible directions of movement of various components, only represent the general direction of this movement.
  • the male contact body 2 is formed with slots 18 in the area of the male contact body 2 that is spread open by the movement of the spreader element 4, so that more flexible fingers 13 are formed and the spread open represents an elastic deformation.
  • a first latching element 9 in the form of a curved groove 9 which is formed circumferentially in the inside of the male contact body which encloses the conical cavity.
  • a second latching element 10 which is designed as a projection in the form of a bead 10, the geometry of the bead 10 allowing a form fit with the curved groove 9.
  • the first latching element 9 and the second latching element 10 secure the spreader element in the tightened position, since the bead 10 engages in the curved groove 9 as soon as the spreader element has been guided into the tightened position.
  • the tightened position of the spreader element 4 and thus the contact pressure between the male contact body 2 and the female contact 3 can be secured.
  • this allows a constructive specification of the contact pressure, since the user is signaled by the latching of the second latching element 10 with the first latching element 9 that the desired end position of the expansion element 4 has been reached.
  • the geometry of the bead 10 in combination with the geometry of the arched groove 9 enables non-destructive locking of the second locking element 10 with the first locking element 9, since the two curves can slide into one another.
  • a non-destructive detachment of the second latching element 10 from the first latching element 9 is made possible when a sufficient amount of force acts against the locking direction 14 on the spreading element 4 .
  • the movement of the spreading element 4 in and counter to the locking direction 14 is carried out via a lever 6 as part of a movement mechanism of the spreading element 4 .
  • the lever 6 is rotatably mounted on a suspension 7 relative to the male contact body 2, with a first leg of the lever 6 engaging in a recess 16 of the spreader element 4, which is formed in a region of the spreader element 4, which is in the locking direction 14 from the male chen Contact body 2 protrudes.
  • the lever 6 is between an open position and a closed one Movable position, so that the spreader element 4 is moved between the loose position and the tightened position.
  • the lever has an opening through which a hook 8, which is attached to the male contact body 2, snaps when the lever 6 reaches the closed position.
  • the hook 8 is designed such that the engagement with the lever 6 can be released manually when a transfer of the lever 6 from the closed position to the open position is to be carried out.
  • a housing 5 surrounds the male contact body 2 in some areas and forms an assembly with this and with the lever 6 and the spreading element 4 .
  • the housing 5 has a first housing part 11 and a second housing part 12 .
  • the first housing part 11 forms the suspension 7 and the hook 8 .
  • the first housing part 11 forms a cap 17 in which the region of the spreader element 4, which extends from the male contact body 2 in the locking direction 14, is encased.
  • the cap 17 has an opening in the direction of the lever 6, so that the lever 6 can engage in the recess 16 of the spreading element.
  • the cap 17 thus serves as dust protection and as protection against Kraftein flows on the spreader 4 against the locking direction 14, which are not caused by a movement of the lever 6.
  • the second housing part 12 encloses the male contact body 2 with a certain Ab was in the area, which is performed in the female contact 3, wherein the second hous seteil primarily designed as a sleeve. This distance is selected such that the female contact body can be inserted between the second housing part 12 and the male contact body. This facilitates the placement of the male contact body 2 in the female contact 3 and the two contact elements are effectively protected against dust.
  • the second housing part 12 is designed in such a way that the female contact 3 is stabilized from the outside when the male contact body 2 is being spread apart by the movement of the spreading element 4 into the tightened position, so that deformation of the female contact 3 is counteracted.
  • housing parts 11, 12 can also be made of different materials in order to further adapt the properties of the housing parts 11, 12 to the respective intended use.
  • Figures 5a, 5b and 5c show how the embodiment of the connecting device is put together, the female contact 3 being attached to a step-shaped connecting element 20 here.
  • the female contact 3 is seated on a lower surface of the step-shaped connecting element 20 and can also be made in one piece with it.
  • the step-shaped connecting element 20 is surrounded in the region of the lower surface and a section arranged thereon with an insulating material 21, an additional housing 22 being formed around the female contact 3 from the insulating material.
  • FIG. 5b shows how the hook 8 snaps onto the lever 6 and fixes it in its closed position.
  • FIG. 6 shows a section through the connecting device 1 according to the arrangement in FIG. 5c.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Processing Of Terminals (AREA)
  • Cable Accessories (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

L'invention concerne un dispositif de connexion électrique qui comprend un contact femelle et corps de contact mâle, qui sont conçus de façon que le corps de contact mâle puisse être inséré dans le contact femelle le long d'une direction d'insertion et le corps de contact mâle comporte une cavité s'étendant à travers le corps de contact mâle, ladite cavité étant délimitée par un côté intérieur du corps de contact mâle ; le dispositif présentant également un élément d'écartement inséré dans la cavité et qui présente des sections transversales se rétrécissant le long de l'axe longitudinal de l'élément d'écartement dans une direction de blocage, l'élément d'écartement pouvant être déplacé d'une position desserrée à une position serrée le long de la direction de blocage, de sorte que le corps de contact mâle soit écarté et qu'une pression de contact soit ainsi produite entre le contact femelle et le corps de contact mâle. La cavité s'étend à travers l'ensemble du corps de contact mâle et forme ainsi deux ouvertures sur le corps de contact mâle. Selon l'invention, le côté intérieur du corps de contact mâle comprend un premier élément d'encliquetage et le côté extérieur de l'élément d'écartement comporte un second élément d'encliquetage, le premier élément d'encliquetage étant assemblé par encliquetage avec le second élément d'encliquetage lorsque l'élément d'écartement atteint la position serrée, de façon que l'élément d'écartement soit bloqué dans la position serrée.
EP22710500.4A 2021-02-23 2022-02-16 Dispositif de connexion électrique Pending EP4298695A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021104244.5A DE102021104244A1 (de) 2021-02-23 2021-02-23 Elektrische Verbindungsvorrichtung
PCT/EP2022/053766 WO2022179897A1 (fr) 2021-02-23 2022-02-16 Dispositif de connexion électrique

Publications (1)

Publication Number Publication Date
EP4298695A1 true EP4298695A1 (fr) 2024-01-03

Family

ID=80780811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22710500.4A Pending EP4298695A1 (fr) 2021-02-23 2022-02-16 Dispositif de connexion électrique

Country Status (6)

Country Link
EP (1) EP4298695A1 (fr)
JP (1) JP2024510552A (fr)
KR (1) KR20230150335A (fr)
CN (1) CN117178435A (fr)
DE (1) DE102021104244A1 (fr)
WO (1) WO2022179897A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4326474A1 (de) 1993-08-06 1995-02-09 Wolfgang B Thoerner Verspannbarer elektrischer Steckverbinder
JP2004349632A (ja) 2003-05-26 2004-12-09 Nissan Motor Co Ltd 基板実装構造、基板実装方法および実装部品
DE102005054849A1 (de) * 2005-11-15 2007-05-16 Newfrey Llc Elektrisch leitende Kupplung
EP2141719B1 (fr) 2008-07-02 2014-04-09 Eaton Industries (Netherlands) B.V. Sectionneur fixe

Also Published As

Publication number Publication date
JP2024510552A (ja) 2024-03-08
WO2022179897A1 (fr) 2022-09-01
KR20230150335A (ko) 2023-10-30
DE102021104244A1 (de) 2022-08-25
CN117178435A (zh) 2023-12-05

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